Home / 5,251.79-7,880.75-1,967.19

Finding the Fourth Proportional to 5,251.79, 7,880.75 and 1,967.19

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Solution

The fourth proportional to 5,251.79, 7,880.75 and 1,967.19 is: 2,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.79 : 7,880.75 = 1,967.19 : x
  2. Step 2: Convert to fraction form
    5,251.79/7,880.75 = 1,967.19/x
  3. Step 3: Cross multiply
    5,251.79x = 7,880.75 × 1,967.19
  4. Step 4: Simplify right side
    5,251.79x = 15,502,927.67
  5. Step 5: Solve for x
    x = 15,502,927.67/5,251.79
  6. Step 6: Final answer
    x = 2,951.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.